'use strict'; var hasOwn = require('hasown'); var $TypeError = require('es-errors/type'); var getSymbolDescription = require('get-symbol-description'); var DefinePropertyOrThrow = require('./DefinePropertyOrThrow'); var IsExtensible = require('./IsExtensible'); // https://262.ecma-international.org/6.0/#sec-setfunctionname module.exports = function SetFunctionName(F, name) { if (typeof F !== 'function') { throw new $TypeError('Assertion failed: `F` must be a function'); } if (!IsExtensible(F) || hasOwn(F, 'name')) { throw new $TypeError('Assertion failed: `F` must be extensible, and must not have a `name` own property'); } if (typeof name !== 'symbol' && typeof name !== 'string') { throw new $TypeError('Assertion failed: `name` must be a Symbol or a String'); } if (typeof name === 'symbol') { var description = getSymbolDescription(name); // eslint-disable-next-line no-param-reassign name = typeof description === 'undefined' ? '' : '[' + description + ']'; } if (arguments.length > 2) { var prefix = arguments[2]; // eslint-disable-next-line no-param-reassign name = prefix + ' ' + name; } return DefinePropertyOrThrow(F, 'name', { '[[Value]]': name, '[[Writable]]': false, '[[Enumerable]]': false, '[[Configurable]]': true }); };